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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"26.10.0: build fails with --shared-simdutf","articleBody":"### Version\n\n_No response_\n\n### Platform\n\n```text\n\n```\n\n### Subsystem\n\n_No response_\n\n### What steps will reproduce the bug?\n\nI'm getting a link error when configuring with --shared-simdutf:\n\n```\n  LINK(target) /tmp/node-v26.10.0/out/Release/mksnapshot\n/usr/bin/ld: /tmp/node-v26.10.0/out/Release/obj.target/v8_base_without_compiler/deps/v8/src/builtins/builtins-typed-array.o: in function `v8::internal::Builtin_Uint8ArrayPrototypeToBase64(int, unsigned long*, v8::internal::Isolate*)':\nbuiltins-typed-array.cc:(.text._ZN2v88internal35Builtin_Uint8ArrayPrototypeToBase64EiPmPNS0_7IsolateE+0x515): undefined reference to `simdutf::atomic_binary_to_base64(char const*, unsigned long, char*, simdutf::base64_options)'\n/usr/bin/ld: /tmp/node-v26.10.0/out/Release/obj.target/v8_base_without_compiler/deps/v8/src/builtins/builtins-typed-array.o: in function `v8::internal::Builtin_Uint8ArrayPrototypeSetFromBase64(int, unsigned long*, v8::internal::Isolate*)':\nbuiltins-typed-array.cc:(.text._ZN2v88internal40Builtin_Uint8ArrayPrototypeSetFromBase64EiPmPNS0_7IsolateE+0x68d): undefined reference to `simdutf::atomic_base64_to_binary_safe(char16_t const*, unsigned long, char*, unsigned long&, simdutf::base64_options, simdutf::last_chunk_handling_options, bool)'\n/usr/bin/ld: builtins-typed-array.cc:(.text._ZN2v88internal40Builtin_Uint8ArrayPrototypeSetFromBase64EiPmPNS0_7IsolateE+0x775): undefined reference to `simdutf::atomic_base64_to_binary_safe(char const*, unsigned long, char*, unsigned long&, simdutf::base64_options, simdutf::last_chunk_handling_options, bool)'\ncollect2: error: ld returned 1 exit status\nmake[1]: *** [tools/v8_gypfiles/mksnapshot.target.mk:252: /tmp/node-v26.10.0/out/Release/mksnapshot] Error 1\nmake: *** [Makefile:145: node] Error 2\n```\nI can work around it but this didn't happen with 26.9.0.\n\n### How often does it reproduce? Is there a required condition?\n\nAlways.\n\n### What is the expected behavior? Why is that the expected behavior?\n\nShould build as expected.\n\n### What do you see instead?\n\nThe build fails.\n\n### Additional information\n\n_No response_","author":{"url":"https://github.com/jlocash2","@type":"Person","name":"jlocash2"},"datePublished":"2026-09-24T19:49:45Z","url":"https://github.com/nodejs/node/issues/66262"}